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| Prefix | Meaning(s) |
|---|---|
| a | without |
| ambi | without |
| an | without |
| ante | before |
| anti | against |
| bi | both, two |
| brady | slow |
| chlor | green |
| circum | around |
| cirrh | yellow |
| con | with |
| contra | against |
| cyan | blue |
| dia | across, through |
| dis | apart, separate from |
| dys | difficult, painful |
| ec | away, out |
| ecto | outside |
| endo | within |
| epi | upon |
| erythr | red |
| eu | good, normal |
| exo | outside |
| hemi | half |
| hyper | above, excessive |
| hypo | below, deficient |
| im | not |
| immun | protected, safe |
| in | not |
| infra | below, under |
| inter | between |
| intra | within |
| iso | equal |
| leuk | white |
| macro | large |
| medi | middle |
| melan | black |
| meso | middle |
| meta | after, beyond, changing |
| micro | small |
| mid | middle |
| mono | one |
| multi | many |
| neo | new |
| pan | all |
| para | abnormal, alongside |
| peri | around |
| polio | gray |
| poly | many |
| post | after |
| pre | before |
| pro | before |
| pseudo | false |
| purpur | purple |
| quadri | four |
| re | again, back |
| retro | after |
| rube | red |
| semi | half |
| sub | below, under |
| super | above, excessive |
| supra | above, excessive |
| sym | with |
| syn | with |
| tachy | fast |
| trans | across, through |
| tri | three |
| ultra | beyond, excessive |
| uni | one |
| xanth | yellow |
| xer | dry |
List of common medical prefixes and pharmaceutical drug prefixes for PTCB & ExCPT provided by PharmacyTechnicianToday.com for pharmacy technicians and pharmacists.
Related Information: What abbreviations does the Joint Commission instruct not to use? Find out by visiting the JCAHO Joint Commission Official DO NOT USE LIST.